unimore/kernel-hacking-2024-linux-steffo
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kernel-hacking-2024-linux-s.../lib
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Linus Torvalds de5cb0dcb7 Merge branch 'address-masking' 
Merge user access fast validation using address masking.

This allows architectures to optionally use a data dependent address
masking model instead of a conditional branch for validating user
accesses.  That avoids the Spectre-v1 speculation barriers.

Right now only x86-64 takes advantage of this, and not all architectures
will be able to do it.  It requires a guard region between the user and
kernel address spaces (so that you can't overflow from one to the
other), and an easy way to generate a guaranteed-to-fault address for
invalid user pointers.

Also note that this currently assumes that there is no difference
between user read and write accesses.  If extended to architectures like
powerpc, we'll also need to separate out the user read-vs-write cases.

* address-masking:
  x86: make the masked_user_access_begin() macro use its argument only once
  x86: do the user address masking outside the user access area
  x86: support user address masking instead of non-speculative conditional
2024-09-22 11:19:35 -07:00
..
842
crypto crypto: lib/mpi - Add error checks to extension 2024-08-17 13:55:50 +08:00
dim dimlib: use *-y instead of *-objs in Makefile 2024-09-01 20:43:40 -07:00
fonts lib/fonts: Fix visiblity of SUN12x22 and TER16x32 if DRM_PANIC 2024-06-24 13:18:02 +02:00
kunit kunit: Device wrappers should also manage driver name 2024-08-26 07:03:46 -06:00
lz4 lib: lz4hc: export LZ4_resetStreamHC symbol 2024-09-09 16:39:06 -07:00
lzo
math Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
pldmfw
raid6 lib/raid6: use CC_FLAGS_FPU for NEON CFLAGS 2024-05-19 14:36:18 -07:00
reed_solomon
test_fortify fortify: use if_changed_dep to record header dependency in *.cmd files 2024-08-15 09:26:02 -07:00
vdso random: vDSO: minimize and simplify header includes 2024-09-13 17:28:35 +02:00
xz xz: remove XZ_EXTERN and extern from functions 2024-09-01 20:43:27 -07:00
zlib_deflate lib/zlib: add missing MODULE_DESCRIPTION() macro 2024-07-04 23:43:11 -07:00
zlib_dfltcc lib/zlib: unpoison DFLTCC output buffers 2024-07-03 19:30:23 -07:00
zlib_inflate
zstd lib: zstd: fix null-deref in ZSTD_createCDict_advanced2() 2024-09-09 16:39:06 -07:00
.gitignore fortify: refactor test_fortify Makefile to fix some build problems 2024-08-15 09:26:02 -07:00
alloc_tag.c sysctl changes for 6.11-rc1 2024-07-16 14:24:29 -07:00
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c lib/asn1_encoder: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:06 -07:00
assoc_array.c
atomic64.c
atomic64_test.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/*_test.ko 2024-06-24 22:25:06 -07:00
audit.c
base64.c
bcd.c lib/bcd: optimize _bin2bcd() for improved performance 2024-09-01 20:43:33 -07:00
bch.c lib/bch.c: use swap() to improve code 2024-07-12 16:39:53 -07:00
bitfield_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
bitmap-str.c
bitmap.c
bitrev.c
bootconfig-data.S
bootconfig.c bootconfig: Remove duplicate included header file linux/bootconfig.h 2024-07-12 08:55:02 +09:00
bsearch.c
btree.c minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
bucket_locks.c
bug.c
build_OID_registry lib/build_OID_registry: avoid non-destructive substitution for Perl < 5.13.2 compat 2024-07-06 11:39:51 -07:00
buildid.c lib/buildid: don't limit .note.gnu.build-id to the first page in ELF 2024-09-11 09:58:31 -07:00
bust_spinlocks.c
check_signature.c
checksum.c
checksum_kunit.c lib: checksum: use ARRAY_SIZE() to improve assert_setup_correct() 2024-09-01 20:43:30 -07:00
closure.c closures: use seq_putc() in debug_show() 2024-09-01 20:43:29 -07:00
clz_ctz.c
clz_tab.c
cmdline.c
cmdline_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
cmpdi2.c
cmpxchg-emu.c
codetag.c alloc_tag: fix allocation tag reporting when CONFIG_MODULES=n 2024-09-01 17:59:03 -07:00
compat_audit.c
cpu_rmap.c
cpumask.c
cpumask_kunit.c lib: bitmap: add missing MODULE_DESCRIPTION() macros 2024-06-18 10:40:52 -07:00
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c debugobjects: Remove redundant checks in fill_pool() 2024-09-09 16:40:26 +02:00
dec_and_lock.c
decompress.c
decompress_bunzip2.c decompress_bunzip2: fix rare decompression failure 2024-07-26 14:33:09 -07:00
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
decompress_unlzo.c
decompress_unxz.c xz: remove XZ_EXTERN and extern from functions 2024-09-01 20:43:27 -07:00
decompress_unzstd.c
devmem_is_allowed.c
devres.c
dhry.h
dhry_1.c
dhry_2.c
dhry_run.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
digsig.c
dump_stack.c Linux 6.11-rc1 2024-07-30 09:30:11 -10:00
dynamic_debug.c dyndbg: use seq_putc() in ddebug_proc_show() 2024-09-01 20:43:29 -07:00
dynamic_queue_limits.c
earlycpio.c
errname.c
error-inject.c
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c fault-inject: improve build for CONFIG_FAULT_INJECTION=n 2024-09-01 20:43:33 -07:00
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c bitmap patches for 6.10 2024-05-21 15:29:01 -07:00
find_bit_benchmark.c lib: bitmap: add missing MODULE_DESCRIPTION() macros 2024-06-18 10:40:52 -07:00
flex_proportions.c
fortify_kunit.c mm: kvmalloc: align kvrealloc() with krealloc() 2024-09-01 20:25:44 -07:00
fw_table.c
gen_crc32table.c
gen_crc64table.c
genalloc.c
generic-radix-tree.c lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() 2024-08-13 22:56:50 -04:00
glob.c lib: glob.c: added null check for character class 2024-09-09 16:47:41 -07:00
globtest.c
group_cpus.c
hashtable_test.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/*_test.ko 2024-06-24 22:25:06 -07:00
hexdump.c
hweight.c
idr.c
inflate.c
interval_tree.c
interval_tree_test.c
iomap.c
iomap_copy.c
iommu-helper.c
iov_iter.c mm: Define struct folio_queue and ITER_FOLIOQ to handle a sequence of folios 2024-09-12 12:20:21 +02:00
irq_poll.c softirq: Remove unused 'action' parameter from action callback 2024-08-20 17:13:40 +02:00
irq_regs.c
is_signed_type_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
is_single_threaded.c
kasprintf.c
Kconfig dim: make DIMLIB dependent on NET 2024-06-25 17:15:06 -07:00
Kconfig.debug bpf-next-6.12 2024-09-21 09:27:50 -07:00
Kconfig.kasan
Kconfig.kcsan
Kconfig.kfence
Kconfig.kgdb
Kconfig.kmsan
Kconfig.ubsan x86/traps: Enable UBSAN traps on x86 2024-08-06 13:42:40 +02:00
kfifo.c TTY/Serial changes for 6.10-rc1 2024-05-22 11:53:02 -07:00
klist.c
kobject.c
kobject_uevent.c kobject_uevent: Fix OOB access within zap_modalias_env() 2024-06-12 13:24:05 +02:00
kstrtox.c
kstrtox.h
kunit_iov_iter.c mm: Define struct folio_queue and ITER_FOLIOQ to handle a sequence of folios 2024-09-12 12:20:21 +02:00
libcrc32c.c
linear_ranges.c
list-test.c list: test: increase coverage of list_test_list_replace*() 2024-09-17 01:11:20 -07:00
list_debug.c
list_sort.c
llist.c
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c
logic_iomem.c
logic_pio.c
lru_cache.c lib/lru_cache: fix spelling mistake "colision"->"collision" 2024-09-01 20:43:29 -07:00
lshrdi3.c
lwq.c
Makefile Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
maple_tree.c ALong with the usual shower of singleton patches, notable patch series in 2024-09-21 07:29:05 -07:00
memcat_p.c
memcpy_kunit.c kunit/fortify: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:05 -07:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c
nmi_backtrace.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c mlxsw: spectrum_acl_erp: Fix object nesting warning 2024-06-10 11:14:52 +01:00
objpool.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
overflow_kunit.c kunit/overflow: Fix UB in overflow_allocation_test 2024-08-15 09:24:55 -07:00
packing.c
parman.c
parser.c
percpu-refcount.c
percpu_counter.c lib/percpu_counter: add missing __percpu qualifier to a cast 2024-09-01 20:43:34 -07:00
percpu_test.c
plist.c lib/plist.c: avoid worst case scenario in plist_add 2024-06-24 22:25:10 -07:00
pm-notifier-error-inject.c
polynomial.c
radix-tree.c
radix-tree.h
random32.c
ratelimit.c
rbtree.c lib/rbtree.c: fix the example typo 2024-07-04 23:43:10 -07:00
rbtree_test.c
rcuref.c
ref_tracker.c
refcount.c
rhashtable.c lib/rhashtable: cleanup fallback check in bucket_table_alloc() 2024-09-01 20:43:32 -07:00
sbitmap.c sbitmap: fix io hung due to race on sbitmap_word::cleared 2024-07-19 09:39:32 -06:00
scatterlist.c mm: Define struct folio_queue and ITER_FOLIOQ to handle a sequence of folios 2024-09-12 12:20:21 +02:00
seq_buf.c
sg_pool.c
sg_split.c
siphash.c
siphash_kunit.c siphash: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:07 -07:00
slub_kunit.c kunit, slub: add test_kfree_rcu() and test_leak_destroy() 2024-08-27 14:12:51 +02:00
smp_processor_id.c
sort.c lib/sort: optimize heapsort for handling final 2 or 3 elements 2024-06-24 22:25:03 -07:00
stackdepot.c stackdepot: use gfp_nested_mask() instead of open coded masking 2024-05-19 14:40:44 -07:00
stackinit_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
stmp_device.c
string.c
string_helpers.c lib/string_helpers: rework overflow-dependent code 2024-08-15 09:26:02 -07:00
string_helpers_kunit.c string: kunit: add missing MODULE_DESCRIPTION() macros 2024-06-28 08:54:55 -07:00
string_kunit.c string: kunit: add missing MODULE_DESCRIPTION() macros 2024-06-28 08:54:55 -07:00
strncpy_from_user.c x86: support user address masking instead of non-speculative conditional 2024-08-19 11:31:18 -07:00
strnlen_user.c x86: support user address masking instead of non-speculative conditional 2024-08-19 11:31:18 -07:00
syscall.c
test-kstrtox.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_bitmap.c lib: bitmap: add missing MODULE_DESCRIPTION() macros 2024-06-18 10:40:52 -07:00
test_bitops.c lib/test_bitops: Add benchmark test for fns() 2024-05-09 09:25:08 -07:00
test_bits.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_blackhole_dev.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_bpf.c netdev_features: convert NETIF_F_LLTX to dev->lltx 2024-09-03 11:36:43 +02:00
test_debug_virtual.c
test_dynamic_debug.c dyndbg: add missing MODULE_DESCRIPTION() macro 2024-06-04 17:40:02 +02:00
test_firmware.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_fprobe.c
test_fpu.h selftests/fpu: move FP code to a separate translation unit 2024-05-19 14:36:20 -07:00
test_fpu_glue.c lib: fix the NULL vs IS_ERR() bug for debugfs_create_dir() 2024-09-01 20:43:40 -07:00
test_fpu_impl.c selftests/fpu: move FP code to a separate translation unit 2024-05-19 14:36:20 -07:00
test_free_pages.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_hash.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_hexdump.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_hmm.c lib: test_hmm: use min() to improve dmirror_exclusive() 2024-09-01 20:25:52 -07:00
test_hmm_uapi.h
test_ida.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_kmod.c lib/test_kmod: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:07 -07:00
test_kprobes.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_linear_ranges.c lib/test_linear_ranges: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:07 -07:00
test_list_sort.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_lockup.c
test_maple_tree.c test_maple_tree: add the missing MODULE_DESCRIPTION() macro 2024-07-03 19:30:05 -07:00
test_memcat_p.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_meminit.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_min_heap.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_module.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_objagg.c lib: test_objagg: Fix spelling 2024-06-10 11:14:52 +01:00
test_objpool.c lib: test_objpool: add missing MODULE_DESCRIPTION() macro 2024-09-01 20:43:23 -07:00
test_parman.c
test_printf.c printf: remove %pGt support 2024-09-03 21:15:42 -07:00
test_ref_tracker.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_rhashtable.c lib/test_rhashtable: add missing MODULE_DESCRIPTION() macro 2024-06-03 18:51:18 -07:00
test_scanf.c vsprintf: add missing MODULE_DESCRIPTION() macro 2024-06-12 13:26:28 +02:00
test_sort.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_static_key_base.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_static_keys.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_sysctl.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_ubsan.c ubsan: add missing MODULE_DESCRIPTION() macro 2024-07-03 19:30:05 -07:00
test_uuid.c uuid: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:06 -07:00
test_vmalloc.c
test_xarray.c test_xarray: add missing MODULE_DESCRIPTION() macro 2024-07-03 19:30:05 -07:00
textsearch.c
timerqueue.c
trace_readwrite.c
ts_bm.c lib/ts: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:04 -07:00
ts_fsm.c lib/ts: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:04 -07:00
ts_kmp.c lib/ts: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:04 -07:00
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
union_find.c Union-Find: add a new module in kernel library 2024-07-30 13:04:36 -10:00
usercopy.c uaccess: always export _copy_[from|to]_user with CONFIG_RUST 2024-07-08 23:44:01 +02:00
usercopy_kunit.c kunit/usercopy: Add missing MODULE_DESCRIPTION() 2024-07-02 10:11:45 -06:00
uuid.c
vsprintf.c printf: remove %pGt support 2024-09-03 21:15:42 -07:00
win_minmax.c
xarray.c The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
xxhash.c